trans-N-tert-Butyloxycarbonyl-4-tosyloxy-L-proline Methyl Ester CAS 88043-21-4
| CAS No. | 88043-21-4 |
| Molecular Formula | C18H25NO7S |
| Molecular Weight | 399.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H25NO7S, trans-N-tert-Butyloxycarbonyl-4-tosyloxy-L-proline Methyl Ester contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 399.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
trans-N-tert-Butyloxycarbonyl-4-tosyloxy-L-proline Methyl Ester (CAS 88043-21-4), molecular formula C18H25NO7S and molecular weight 399.46 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures trans-N-tert-Butyloxycarbonyl-4-tosyloxy-L-proline Methyl Ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H25NO7S |
| Molecular Weight | 399.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- N-(2,4-Dimethoxyphenyl)-2-((1-(4-methoxyphenyl)-1H-imidazol-2-yl)thio)acetamide (CAS 688335-95-7)
- Meropenem Impurity 47 (CAS CATO-C4X-130947)
- N-((1-Ethylpyrrolidin-2-yl)methyl)-5-(ethylsulfonyl)-2-methoxy-4-nitrobenzamide (CAS 79893-23-5)
- Meropenem Impurity 50 (CAS CATO-C4X-130950)
- N,N-dimethyl-1,4-diazepane-1-sulfonamide hydrochloride (CAS 1803580-76-8)
- 3-Amino-4-(trifluoromethoxy)phenol (CAS 1261581-61-6)
- 3-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-methylpropanoic acid (CAS 1155935-14-0)
- 5-Chloro-3-phenyl-1H-pyrazole (CAS 2308505-56-6)
- 3-Acetyl-4-methoxybenzoic acid (CAS 103203-97-0)
- 4-Methyl-3-Phenyl coumarin (CAS 23028-23-1)
- N1-(4-Bromobenzyl)-N1-ethylethane-1,2-diamine (CAS 1353965-03-3)
- 2,7-difluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 2386883-33-4)
- N-(4-bromophenyl)thiophene-2-carboxamide (CAS 50428-20-1)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com